JP3459193B2 - Method of repairing friction stir welding and method of manufacturing railway vehicle - Google Patents

Method of repairing friction stir welding and method of manufacturing railway vehicle

Info

Publication number
JP3459193B2
JP3459193B2 JP14575999A JP14575999A JP3459193B2 JP 3459193 B2 JP3459193 B2 JP 3459193B2 JP 14575999 A JP14575999 A JP 14575999A JP 14575999 A JP14575999 A JP 14575999A JP 3459193 B2 JP3459193 B2 JP 3459193B2
Authority
JP
Japan
Prior art keywords
repair
welding
bead
friction stir
vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP14575999A
Other languages
Japanese (ja)
Other versions
JP2000334583A (en
Inventor
昌邦 江角
一成 福寄
章弘 佐藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14575999A priority Critical patent/JP3459193B2/en
Priority to TW089101750A priority patent/TW440485B/en
Priority to CNB00103667XA priority patent/CN1177667C/en
Priority to AU35309/00A priority patent/AU769779B2/en
Priority to EP00304379A priority patent/EP1057573A3/en
Priority to KR1020000028389A priority patent/KR20010039622A/en
Priority to US09/714,610 priority patent/US6422449B1/en
Publication of JP2000334583A publication Critical patent/JP2000334583A/en
Application granted granted Critical
Publication of JP3459193B2 publication Critical patent/JP3459193B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B23K20/1265—Non-butt welded joints, e.g. overlap-joints, T-joints or spot welds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/04—Welding for other purposes than joining, e.g. built-up welding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49718—Repairing
    • Y10T29/49721—Repairing with disassembling
    • Y10T29/49723—Repairing with disassembling including reconditioning of part
    • Y10T29/49725—Repairing with disassembling including reconditioning of part by shaping
    • Y10T29/49726—Removing material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Arc Welding In General (AREA)

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は摩擦攪拌接合におけ
る補修方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a repair method for friction stir welding.

【０００２】[0002]

【従来の技術】摩擦攪拌接合方法は、接合部に挿入した
丸棒（回転工具という。）を回転させながら接合線に沿
って移動させ、接合部を発熱、軟化させ、塑性流動さ
せ、固相接合する方法である。回転工具は、接合部に挿
入する小径部と、外部に位置する大径部とからなる。小
径部と大径部は同軸である。小径部と大径部との境は接
合部に若干挿入されている。回転工具は接合の進行方向
に対して、後方に傾斜させている。2. Description of the Related Art In the friction stir welding method, a round bar (referred to as a rotary tool) inserted into a joint is rotated and moved along a joint line to heat the joint, soften it, and cause it to plastically flow to solid-phase. It is a method of joining. The rotary tool is composed of a small diameter portion to be inserted into the joint and a large diameter portion located outside. The small diameter portion and the large diameter portion are coaxial. The boundary between the small diameter portion and the large diameter portion is slightly inserted in the joint portion. The rotary tool is inclined rearward with respect to the advancing direction of joining.

【０００３】摩擦攪拌接合を行う場合、回転工具を挿入
する側の表面に凸部が形成される。このため、接合部で
は板厚の減少となる。これを防止するため、被接合部材
の端部に回転工具側に突出する凸部を設け、これを含め
て摩擦攪拌接合している。また、凸部に替えて第３の板
を配置して摩擦攪拌接合しているWhen friction stir welding is performed, a convex portion is formed on the surface on the side where the rotary tool is inserted. Therefore, the plate thickness is reduced at the joint. In order to prevent this, a convex portion projecting to the rotary tool side is provided at the end of the member to be joined, and friction stir welding including this is performed. Also, instead of the convex portion, a third plate is arranged and friction stir welding is performed.

【０００４】また、中空形材の接合において、中空形材
の面板に直交する支え板を一体に設け、摩擦攪拌接合の
力によって面板が曲がることを防止している。これは特
開平９−３０９１６４号公報（ＥＰ０７９７０４３Ａ
２）に示されている。Further, in joining the hollow shape members, a support plate orthogonal to the face plate of the hollow shape member is integrally provided to prevent the face plate from being bent by the force of friction stir welding. This is disclosed in JP-A-9-309164 (EP0797043A).
2).

【０００５】図９は、摩擦攪拌接合により鉄道車両１０
の側構体を接合する技術を示す。側構体の構造部材は、
例えばアルミ合金材（Ａ６Ｎ０１材）を押出し成型して
製作した帯状の押出し形材（部材）２０，３０を互の側
縁部で接合させ、この接合線４０に沿って摩擦攪拌接合
を施して接合ビード５０を形成する。次に、接合ビード
５０を検査し、欠陥がなければそのままに、また欠陥が
発見されれば欠陥を補修した後に、ヘアライン加工等を
施して美感のある表面を形成する。FIG. 9 shows a railway vehicle 10 by friction stir welding.
The technique of joining the side structures of is shown. The structural members of the side structure are
For example, strip-shaped extruded shape members (members) 20 and 30 manufactured by extruding an aluminum alloy material (A6N01 material) are joined at their side edge portions, and friction stir welding is performed along the joining line 40 to join them. The beads 50 are formed. Next, the bonding bead 50 is inspected, and if there is no defect, it is left as it is, and if a defect is found, after repairing the defect, hairline processing or the like is performed to form a beautiful surface.

【０００６】図４は、第１の部材２０と第２の部材３０
の接合線４０に沿って摩擦攪拌接合を施して、接合ビー
ド５０を形成した状態を示す。この接合ビード５０を、
例えば超音波探傷検査等により検査し、図５の欠陥６０
が発見されたものとする。尚、図１から図７（図３を除
く）において凸部の端部の線は除いて示している。FIG. 4 shows a first member 20 and a second member 30.
The state where the welding bead 50 is formed by performing friction stir welding along the welding line 40 of FIG. This joining bead 50
For example, the defect 60 shown in FIG.
Was discovered. In addition, in FIGS. 1 to 7 (excluding FIG. 3), the lines of the end portions of the convex portions are omitted.

【０００７】図６，図７は、この欠陥の従来の補修工程
を示す。第１の部材２０と第２の部材３０は、アルミ合
金材であるＡ６Ｎ０１材を母材として押出し加工により
つくられている。この部材２０，３０に摩擦攪拌接合を
施して形成される接合ビード５０も母材と同じＡ６Ｎ０
１材を成分となる。このビード５０の欠陥を除去するた
めに欠陥部を含めてグラインダ等の工具により、加工を
施し、補修領域７０を形成する。6 and 7 show a conventional repair process for this defect. The first member 20 and the second member 30 are made by extrusion using A6N01 material which is an aluminum alloy material as a base material. A welding bead 50 formed by friction stir welding of these members 20 and 30 is also the same as the base metal, A6N0
One material is a component. In order to remove the defect of the bead 50, the repaired region 70 is formed by processing the defective portion including a defective portion with a tool such as a grinder.

【０００８】次に、ＭＩＧ溶接を施し、補修ビード８０
を形成する。このＭＩＧ溶接には、ＭＩＧ溶接に適した
溶接ワイヤが用いられている。この溶接ワイヤの材質
は、Ａ５３５６規格の材料が用いられる。Next, MIG welding is performed and a repair bead 80 is formed.
To form. A welding wire suitable for MIG welding is used for this MIG welding. As a material of this welding wire, a material of A5356 standard is used.

【０００９】図８は、この補修済みのビードを含めて接
合部にヘアライン加工５２を施した状態を示す。ヘアラ
イン加工部５２は、部材２０，３０の表面に対して同質
性の高い表面を有し、無塗装のままで、車両の側構体と
して使用することができる。FIG. 8 shows a state in which a hairline process 52 is applied to the joint part including the repaired bead. The hairline processing part 52 has a surface of high homogeneity with respect to the surfaces of the members 20 and 30, and can be used as a side structure of a vehicle without being painted.

【００１０】[0010]

【発明が解決しようとする課題】上述した従来の摩擦攪
拌接合による接合ビードをＭＩＧ溶接して補修した接合
ビードにヘアライン加工を施すと、補修部８２の表面
が、周囲の表面に対して異なる外観を示す。この補修部
の外観は、無塗装のままで車両の側構体として接合部材
を使用する際に、美観上問題となる。本発明は、上述し
た問題を解消する摩擦攪拌接合部の補修方法を提供する
ものである。When hairline processing is applied to the joining bead repaired by MIG welding the joining bead by the conventional friction stir welding described above, the surface of the repaired portion 82 has a different appearance from the surrounding surface. Indicates. The appearance of the repaired part is aesthetically problematic when the joint member is used as a side structure of a vehicle without being painted. The present invention provides a method for repairing a friction stir welded portion that solves the above-mentioned problems.

【００１１】[0011]

【課題を解決するための手段】本発明の摩擦攪拌接合し
て形成した接合部の補修方法は、接合ビードに含まれる
欠陥を研削加工により除去して補修領域を形成する工程
と、形成された補修領域に部材の母材と同材料の溶接棒
を用いてＴＩＧ溶接によって補修ビードを形成する工程
とを備えるものである。そして、補修ビードと接合ビー
ドを含む接合部にヘアライン加工を施す工程を備えるこ
とができるものである。A method of repairing a joint formed by friction stir welding according to the present invention comprises a step of removing a defect contained in a weld bead by a grinding process to form a repair region. And a step of forming a repair bead by TIG welding using a welding rod made of the same material as the base material of the member in the repair area. Further, it is possible to provide a step of performing hairline processing on the joint portion including the repair bead and the joint bead.

【００１２】[0012]

【発明の実施の形態】図１，図２は、本発明による摩擦
攪拌接合の補修方法を示す。車両の側構体を構成する押
出し形材の第１の部材２０と第２の部材３０の接合部４
０に、摩擦攪拌接合を施して接合ビード５０を形成す
る。1 and 2 show a method of repairing friction stir welding according to the present invention. Joining portion 4 of first member 20 and second member 30 of extruded frame members that form the side structure of the vehicle
No. 0 is friction stir welded to form a weld bead 50.

【００１３】図１０は、図９のＡ−Ａ断面を示す。図に
おいて、第１の部材２０の凸部２２と、第２の凸部３２
の側端部を突き合わせて、摩擦攪拌接合によるビード５
０を形成する。FIG. 10 shows a cross section taken along the line AA of FIG. In the figure, the convex portion 22 of the first member 20 and the second convex portion 32
Butt 5 by friction stir welding
Form 0.

【００１４】部材２０，３０の凸部２２，３２側を車両
の外面として使用する場合には、接合された凸部を研削
加工等により平坦面５４にして使用する。反対面を外側
にする場合には、接合された凸部はそのままにしておい
てもよい。この接合ビード５０は、部材２０，３０の母
材であるＡ６Ｎ０１材と同様の材質で形成される。When the convex portions 22, 32 of the members 20, 30 are used as the outer surface of the vehicle, the joined convex portions are used as a flat surface 54 by grinding or the like. When the opposite surface is on the outside, the joined convex portion may be left as it is. The joining bead 50 is formed of the same material as the A6N01 material which is the base material of the members 20 and 30.

【００１５】次に、接合ビード５０を検査する。この検
査は凸部が残っている状態で行っても、凸部を切削して
から行ってもよい。検査の結果、接合ビード５０に割れ
やピット等の欠陥が発見されると、この欠陥を含む周囲
の接合ビード５０をグラインダで除去（研削）して、補
修領域７０を形成する（図１）。Next, the bonding bead 50 is inspected. This inspection may be performed with the convex portion remaining or after the convex portion is cut. As a result of the inspection, if a defect such as a crack or a pit is found in the bonding bead 50, the peripheral bonding bead 50 including the defect is removed (ground) by a grinder to form a repair region 70 (FIG. 1) .

【００１６】次に、図２に示すように、この補修領域７
０にＴＩＧ溶接により補修ビード１００を形成する。つ
まり、肉盛り溶接する。このＴＩＧ溶接に当り、溶接棒
として母材と同じＡ６Ｎ０１材の溶接棒を用意し、溶接
を行う。このＡ６Ｎ０１材の溶接棒は母材の押出し形
（部材）２０，３０の余材を切断して製作したものであ
る。この溶接により、接合ビード５０と補修ビード１０
０は、同じ材料で形成されることとなる。ＴＩＧ溶接
は、電極と溶接棒が異なるので、母材と同材質の材料を
容易に溶接棒にできる。Next, as shown in FIG. 2, this repair area 7
A repair bead 100 is formed by TIG welding at 0. That is, overlay welding is performed. In this TIG welding, a welding rod made of the same A6N01 material as the base metal is prepared as a welding rod and welding is performed. This welding rod of A6N01 material is manufactured by cutting the extra material of the extruded shapes (members) 20 and 30 of the base material. By this welding, the joining bead 50 and the repair bead 10
0 will be formed of the same material. In TIG welding, since the electrode and the welding rod are different, the same material as the base material can be easily used as the welding rod.

【００１７】次に、凸部を切削して除き、この凸部側の
面にエアライン加工を行う。したがって、この接合ビー
ド部にヘアライン加工を施して得たヘアライン加工部５
４には、補修ビード１００の痕跡は残らず品質の高い表
面を得ることができる。したがって、美感のよい車両を
構成することができる。Next, the convex portion is removed by cutting, and the surface on the convex portion side is subjected to airline processing. Therefore, the hairline-processed portion 5 obtained by applying the hairline processing to this joint bead portion
In No. 4, a high quality surface can be obtained without leaving any trace of the repair bead 100. Therefore, a vehicle with a good appearance can be configured.

【００１８】押出し形材Ａ６Ｎ０１材で、ＭＩＧ溶接の
とき、溶接ワイヤはＡ５３５６材を使用している。この
組合せは溶接ワイヤメーカの推奨である。この組合せ
が、溶接強度、施行等の点から最もよい。形材：Ａ６Ｎ
０１材、溶接ワイヤ：Ａ６Ｎ０１材の組合せは、ワイ
ヤ：Ａ６Ｎ０１材が市販されていない。また、この両者
の組合せは溶接強度：溶接性等から除かれている。そこ
で、本発明では、Ａ６Ｎ０１材の余材を切断して、溶接
棒とした。In the case of MIG welding, the extruded shape material A6N01 is used and the welding wire is A5356 material. This combination is recommended by welding wire manufacturers. This combination is the best in terms of welding strength and workability. Profile: A6N
As for the combination of 01 material and welding wire: A6N01 material, wire: A6N01 material is not commercially available. The combination of the two is excluded from the welding strength: weldability. Therefore, in the present invention, the surplus material of the A6N01 material was cut into a welding rod.

【００１９】尚、接合ビードの検査、補修は凸部を切削
した後、行う場合がある。中空形材の場合で、両面に接
合部がある場合、上記ＴＩＧ溶接はヘアライン加工を行
う外面の補修に用いる。内面側の補修は通材の材料であ
るＡ５３５６規格の材料の溶接ワイヤを用いたＭＩＧ溶
接を用いる。The joint bead may be inspected and repaired after cutting the convex portion. In the case of a hollow shape member, if there are joints on both sides, the TIG welding is used for repairing the outer surface for hairline processing. For repairing the inner surface side, MIG welding using a welding wire made of a material of A5356 standard, which is the material of the threading material, is used.

【００２０】図１０のように、回転工具の小径部の先端
をベッドに近接して摩擦攪拌接合をすると、図１０の部
材２０，３０の下面側の面は平滑に仕上がる。この面を
車両側の外面とし、エアライン加工を行う場合がある。
この接合ビードの補修を図１０の下面側から行う場合に
も、上記ＴＩＧ溶接による補修ができる。その後、補修
ビードを研削して平滑にする。When the tip of the small diameter portion of the rotary tool is brought close to the bed and friction stir welding is performed as shown in FIG. 10, the surfaces of the lower surfaces of the members 20 and 30 in FIG. 10 are finished smoothly. In some cases, this surface is used as the outer surface on the vehicle side and airline processing is performed.
Even when the repair of the joining bead is performed from the lower surface side in FIG. 10, the repair by the TIG welding can be performed. Then, the repair bead is ground to be smooth.

【００２１】[0021]

【発明の効果】本発明は以上のように、アルミ合金材を
中空押出し成型してつくられる部材を摩擦攪拌接合によ
り接合してアルミ製の車両等の構造部材を構成する際
に、摩擦攪拌接合による接合ビードの欠陥を補修する際
に、欠陥部を研削加工等により除去して補修領域を形成
し、この補修領域に部材と同材質の溶接棒を用いて、Ｔ
ＩＧ溶接して補修ビードを形成するものである。INDUSTRIAL APPLICABILITY As described above, according to the present invention, friction stir welding is used when a structural member such as a vehicle made of aluminum is formed by joining members made by hollow extrusion of an aluminum alloy material by friction stir welding. When repairing the defect of the joining bead due to, the defective part is removed by grinding or the like to form a repair region, and a welding rod made of the same material as the member is used in the repair region.
IG welding is used to form a repair bead.

【００２２】摩擦攪拌接合による接合ビードと補修ビー
ドは同じ材質で形成されるので、ビードにヘアライン加
工を施したときに、補修ビードの痕跡は残らず、美感の
高い接合表面を得ることができる。したがって、無塗装
のままで、車両等を構成することができ、軽量化ととも
にリサイクルにも適した構造体を得ることができる。Since the joining bead by the friction stir welding and the repair bead are made of the same material, when the bead is subjected to the hairline processing, no trace of the repair bead is left and a well-joined surface can be obtained. Therefore, a vehicle or the like can be configured without being painted, and a structure that is lightweight and suitable for recycling can be obtained.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の摩擦攪拌接合部の補修工程を示す説明
図。FIG. 1 is an explanatory view showing a repairing process of a friction stir welding part of the present invention.

【図２】本発明の摩擦攪拌接合部の補修工程を示す説明
図。FIG. 2 is an explanatory view showing a repair process of the friction stir welding part of the present invention.

【図３】本発明の摩擦攪拌接合部の補修工程を示す説明
図。FIG. 3 is an explanatory view showing a repair process of the friction stir welding part of the present invention.

【図４】摩擦攪拌接合部の説明図。FIG. 4 is an explanatory view of a friction stir welding portion.

【図５】摩擦攪拌接合部の欠陥の説明図。FIG. 5 is an explanatory diagram of a defect of a friction stir welding portion.

【図６】摩擦攪拌接合部の従来の補修工程を示す説明
図。FIG. 6 is an explanatory view showing a conventional repair process of a friction stir welding part.

【図７】摩擦攪拌接合部の従来の補修工程を示す説明
図。FIG. 7 is an explanatory view showing a conventional repair process of a friction stir welding part.

【図８】摩擦攪拌接合部の従来の補修工程を示す説明
図。FIG. 8 is an explanatory diagram showing a conventional repair process for a friction stir welding part.

【図９】摩擦攪拌接合により車両の側構体を作製する説
明図。FIG. 9 is an explanatory view of manufacturing a side structure of a vehicle by friction stir welding.

【図１０】図９のＡ−Ａ断面図。10 is a cross-sectional view taken along the line AA of FIG.

【符号の説明】[Explanation of symbols]

１０ 車両 ２０ 第１の部材 ３０ 第２の部材 ５０ 摩擦攪拌接合による接合ビード ６０ 欠陥 ７０ 補修領域 １００ 補修ビード 10 vehicles 20 First member 30 Second member 50 Welding bead by friction stir welding 60 defects 70 Repair Area 100 repair beads

───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐藤 章弘 茨城県日立市大みか町七丁目１番１号 株式会社 日立製作所 日立研究所内 (56)参考文献 特開 平11−90655（ＪＰ，Ａ) 特開 平10−52773（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B23K 20/12 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akihiro Sato 7-1-1 Omika-cho, Hitachi-shi, Ibaraki Hitachi Ltd. Hitachi Research Laboratory (56) Reference Japanese Patent Laid-Open No. 11-90655 (JP, A) Kaihei 10-52773 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) B23K 20/12

Claims (8)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 アルミ合金を母材とする部材を摩擦攪拌
して形成した接合部の補修方法であって、 接合ビードに含まれる欠陥を研削加工により除去して補
修領域を形成する工程と、 形成された補修領域に部材の母材と同材料の溶接棒を用
いてＴＩＧ溶接によって補修ビードを形成する工程と、 を備える摩擦攪拌接合部の補修方法。1. A method of repairing a joint formed by friction stirring of a member made of an aluminum alloy as a base material, the step of removing defects contained in the joint bead by grinding to form a repair region, A method of repairing a friction stir welding part, comprising the step of forming a repair bead by TIG welding using a welding rod made of the same material as the base material of the member in the repair area thus formed. 【請求項２】 補修ビードを含む前記部材にヘアライン
加工を施す工程を備える請求項１記載の摩擦攪拌接合部
の補修方法。2. The method for repairing a friction stir welded portion according to claim 1 , further comprising a step of subjecting the member including the repair bead to a hairline process. 【請求項３】 鉄道車両の側構体を構成する部材を摩擦
攪拌接合し、 前記摩擦攪拌接合による接合ビードに含まれる欠陥を研
削加工により除去して補修領域を形成し、 形成された補修領域に部材の母材と同材料の溶接棒を用
いてＴＩＧ溶接によって補修ビードを形成し、 前記補修ビードを含む前記部材にヘアライン加工を施す
こと、 を特徴とする鉄道車両の製作方法。 3. A member that constitutes a side structure of a railway vehicle is rubbed
Stir welding is performed and the defects contained in the welding bead produced by the friction stir welding are polished.
A repair area is formed by removing by machining, and a welding rod made of the same material as the base metal of the member is used in the formed repair area.
Forming a repair bead by TIG welding, and subjecting the member including the repair bead to a hairline process.
A method of manufacturing a railway vehicle, characterized by: 【請求項４】 前記溶接棒は前記部材の余材であるこ
と、を特徴とする請求項３記載の鉄道車両の製作方法。 4. The welding rod is a surplus material of the member.
4. The method for manufacturing a railway vehicle according to claim 3, wherein: 【請求項５】 前記鉄道車両の車外側になる面側から前
記摩擦攪拌接合を行い、 前記車外側になる面側から前記研削加工を行って、前記
補修領域を形成し、前記車外側になる面側から前記補修
領域に対して溶接を行って補修ビードを形成し、 前記補修ビードを切削し、 前記ヘアライン加工を施すこと、 を特徴とする請求項３記載の鉄道車両の製作方法。5. The friction stir welding is performed from the surface side of the railroad car that faces the vehicle exterior side, and the grinding process is performed from the surface side that faces the vehicle exterior side to form the repair region and the vehicle exterior side. Repair from the surface side
Complement Osamu bead formed by performing welding to the region, cutting the repair bead, a manufacturing method of a railway vehicle according to claim 3, wherein a, subjecting the hair line process. 【請求項６】 前記鉄道車両の車内側になる面側から前
記摩擦攪拌接合を行い、 前記車外側になる面側から前記研削加工を行って、前記
補修領域を形成し、 前記車外側になる面側から前記補修領域に対して前記溶
接を行って前記補修ビードを形成し、 前記補修ビードを切削し、 前記ヘアライン加工を施すこと、 を特徴とする請求項３記載の鉄道車両の製作方法。6. The friction stir welding is performed from a surface side of the railroad car that is an inner side of the vehicle, and the grinding process is performed from a surface side that is an outer side of the vehicle to form the repair region, and the outer side of the vehicle is formed. The method for manufacturing a railway vehicle according to claim 3 , wherein the welding is performed from the surface side to the repair region to form the repair bead, the repair bead is cut, and the hairline processing is performed. 【請求項７】 鉄道車両の側構体を構成する部材を摩擦
攪拌接合し、 前記摩擦攪拌接合による接合ビードに含まれる欠陥を研
削加工により除去して補修領域を形成し、形成された該
補修領域に前記部材の母材と同材料の溶接棒を用いてＴ
ＩＧ溶接によって補修ビードを形成し、 前記補修ビードを含む前記部材にヘアライン加工を施す
こと、 を特徴とする鉄道車両の製作方法。7. A member constituting a side structure of a railway vehicle is friction stir welded, and defects contained in a weld bead produced by the friction stir welding are polished.
The repaired area is formed by removing it by machining, and the repaired area is formed.
In the repair area, a welding rod made of the same material as the base material of the member is used for T
A repair bead is formed by IG welding, and a hairline process is performed on the member including the repair bead. 【請求項８】 鉄道車両の側構体を構成する中空形材を
車内側になる面側と車外側になる面側とからそれぞれ摩
擦攪拌接合し、 前記摩擦攪拌接合による接合ビードに含まれる欠陥を研
削加工により除去して補修領域を形成し、 車外側の前記補修領域に部材の母材と同材料の溶接棒を
用いてＴＩＧ溶接によって補修ビードを形成するととも
に、車内側の前記補修領域にＭＩＧ溶接を行い、 前記補修ビードを含む前記部材にヘアライン加工を施す
こと、 を特徴とする鉄道車両の製作方法。 8. A hollow frame member forming a side structure of a railway vehicle
From the side that faces the inside and the side that faces the outside, wear
After friction stir welding, the defects contained in the weld bead produced by the friction stir welding are polished.
A repair area is formed by removing by machining, and a welding rod made of the same material as the base metal of the member is placed in the repair area outside the vehicle.
And using it to form a repair bead by TIG welding
Then, MIG welding is performed on the repair area inside the vehicle, and hairline processing is performed on the member including the repair bead.
A method of manufacturing a railway vehicle, characterized by:
JP14575999A 1999-05-26 1999-05-26 Method of repairing friction stir welding and method of manufacturing railway vehicle Expired - Fee Related JP3459193B2 (en)

Priority Applications (7)

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JP14575999A JP3459193B2 (en) 1999-05-26 1999-05-26 Method of repairing friction stir welding and method of manufacturing railway vehicle
TW089101750A TW440485B (en) 1999-05-26 2000-02-01 A mending method of a friction stir jointing portion
CNB00103667XA CN1177667C (en) 1999-05-26 2000-03-01 Repairing method for connector of friction stirring
AU35309/00A AU769779B2 (en) 1999-05-26 2000-05-15 A mending method of a friction stir joining portion
EP00304379A EP1057573A3 (en) 1999-05-26 2000-05-24 A method of mending a friction stir joint
KR1020000028389A KR20010039622A (en) 1999-05-26 2000-05-25 A mending method of a friction stir joining portion
US09/714,610 US6422449B1 (en) 1999-05-26 2000-11-17 Method of mending a friction stir welding portion

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